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Any home cooling experts out there?
RayB:
It's warming up. It's about 28C outside. I have 2 stories plus basement. Had all the windows closed since last night. My ground floor stayed cool enough, it's about 23C at the moment while 28 outside. My top floor on the other hand is 28C.
I have central air which I haven't turned on yet. Judging by the disparity in temp between the two floors I'm wondering if it would be more economical to just get a window AC unit for upstairs? I figure if run the central air the ground floor will get cold by the time the top floor drops to comfortable temp.
Opinions?
Blanka:
Country?
Wall construction type?
Floor type?
Glass type?
Roof type?
Insulation in wall or roof?
Heating system?
Orientation of windows?
:pics
Bobulus:
I'm by no means an expert, but if your goal is to cool the top floor while leaving the bottom floor alone, and save as much money as possible while doing so, would it not be cheaper to save on the cost of a window unit and just close the vents for the 1st floor?
gryhnd:
--- Quote from: Bobulus on May 24, 2010, 05:03:36 pm ---I'm by no means an expert, but if your goal is to cool the top floor while leaving the bottom floor alone, and save as much money as possible while doing so, would it not be cheaper to save on the cost of a window unit and just close the vents for the 1st floor?
--- End quote ---
Ditto. Close the dampers on the 1st floor (but perhaps not all the way as you don't want to create too much back pressure). My poorly constructed HVAC also benefits from a booster fan ($60) in the 2nd story supply plenum, particularly in the summers as it helps to pull the heavier cold air upstairs.
I also have had great luck with mini-split systems. I use one in my sunroom. Not as obtrusive as a window unit, but they are of course pricier.
patrickl:
--- Quote from: Blanka on May 24, 2010, 05:02:23 pm ---Country?
Wall construction type?
Floor type?
Glass type?
Roof type?
Insulation in wall or roof?
Heating system?
Orientation of windows?
:pics
--- End quote ---
If you get all that, are you then just gonna say "No, I don't know"?
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